Updates go services to google-cloud-go 0.40.0 (GoogleCloudPlatform#234)

* Updates go services to google cloud go 0.40.0

* Revert kubernetes manifests, remove custom images

* Remove binary file, replace nil error with unimplemented

* Shippingservice needed status import

* Remove shippingservice binary

release/kubernetes-manifests.yaml

@@ -450,9 +450,9 @@ spec:
       initContainers:
       - name: wait-frontend
         image: alpine:3.6
-        command: ['sh', '-c', 'set -x;  apk add --no-cache curl && 
-          until timeout -t 2 curl -f "http://${FRONTEND_ADDR}"; do 
-            echo "waiting for http://${FRONTEND_ADDR}"; 
+        command: ['sh', '-c', 'set -x;  apk add --no-cache curl &&
+          until timeout -t 2 curl -f "http://${FRONTEND_ADDR}"; do
+            echo "waiting for http://${FRONTEND_ADDR}";
             sleep 2;
           done;']
         env:
@@ -683,4 +683,4 @@ spec:
   - name: grpc
     port: 9555
     targetPort: 9555
----
+---

src/checkoutservice/Gopkg.toml

@@ -27,7 +27,7 @@
 
 [[constraint]]
   name = "cloud.google.com/go"
-  version = "0.27.0"
+  version = "0.40.0"
 
 [[constraint]]
   name = "contrib.go.opencensus.io/exporter/stackdriver"
@@ -53,10 +53,6 @@
   branch = "master"
   name = "golang.org/x/net"
 
-[[constraint]]
-  name = "google.golang.org/grpc"
-  version = "=1.14.0"
-
 [prune]
   go-tests = true
   unused-packages = true

src/checkoutservice/main.go

@@ -192,6 +192,10 @@ func (cs *checkoutService) Check(ctx context.Context, req *healthpb.HealthCheckR
 	return &healthpb.HealthCheckResponse{Status: healthpb.HealthCheckResponse_SERVING}, nil
 }
 
+func (cs *checkoutService) Watch(req *healthpb.HealthCheckRequest, ws healthpb.Health_WatchServer) error {
+	return status.Errorf(codes.Unimplemented, "health check via Watch not implemented")
+}
+
 func (cs *checkoutService) PlaceOrder(ctx context.Context, req *pb.PlaceOrderRequest) (*pb.PlaceOrderResponse, error) {
 	log.Infof("[PlaceOrder] user_id=%q user_currency=%q", req.UserId, req.UserCurrency)